1121121221223 has 8 divisors (see below), whose sum is σ = 1520164368000. Its totient is φ = 734746110968.

The previous prime is 1121121221153. The next prime is 1121121221279. The reversal of 1121121221223 is 3221221211211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121121221223 - 2¹² = 1121121217127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1121121221223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121121229223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3167008923 + ... + 3167009276.

It is an arithmetic number, because the mean of its divisors is an integer number (190020546000).

Almost surely, 2^{1121121221223} is an apocalyptic number.

1121121221223 is a deficient number, since it is larger than the sum of its proper divisors (399043146777).

1121121221223 is an equidigital number, since it uses as much as digits as its factorization.

1121121221223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6334018261.

The product of its digits is 192, while the sum is 21.

Adding to 1121121221223 its reverse (3221221211211), we get a palindrome (4342342432434).

The spelling of 1121121221223 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred twenty-one thousand, two hundred twenty-three".